CVE-2026-44549: open-webui · Cross-site Scripting
Affects open-webuiSource GCVE Database
Not known to be exploited · CVSS 7.3 High : upgrade to 0.8.0 soon.
Data as of 12 Nov 2026, 00:19 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.3 |
|---|
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.8.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade open-webui to 0.8.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| open-webui open-webui | Affected
| Fixed in
|
AI-suggested
Upgrade open-webui to version 0.8.0 or later, where this vulnerability is fixed. No additional mitigations are required once the update is applied.
Description
Open WebUI versions prior to 0.8.0 contain a cross-site scripting (XSS) vulnerability related to unsafe previewing of Excel file attachments. A crafted XLSX file can exploit the sheetjs function sheet_to_html to inject malicious HTML into the DOM without sanitization, leading to XSS. This vulnerability is fixed in version 0.8.0.